Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Single-row / Metric series | |
| Bore diameter | d | 20 mm |
| Outside diameter | D | 52 mm |
| Width | B | 21 mm |
| Basic dynamic load rating | C | 56.5 kN |
| Basic static load rating | C0 | 46.7 kN |
| Fatigue load limit | Pu | 6.7 kN |
| Limiting speed | nG | 8400 r/min |
| Mass | ≈m | 0.244 kg |
Manufacturer Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | KOYO | |
| Official Class Key | 050-010-010 |
Classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official Category Path | Tapered roller bearings - Single-row - Metric series | |
| Official Classification 1 | Tapered roller bearings / Single-row / Metric series |
Technical Data25 parameters
| Parameter | Symbol | Value |
|---|---|---|
| d | 20 mm | |
| D | 52 mm | |
| T | 22.25 mm | |
| B | 21 mm | |
| C | 18 mm | |
| R(Min.) | 1.5 mm | |
| R1(Min.) | 1.5 mm | |
| Basic Load Ratings : Cr | 56.5 kN | |
| Basic Load Ratings : C0R | 46.7 kN | |
| Fatigue Load Limit : Cu | 6.70 kN | |
| Limiting Speeds(Grease Lub.) | 8400 min-1 | |
| Limiting Speeds(Oil Lub.) | 11000 min-1 | |
| Load Center Spread : A | 14.4 mm | |
| Constant E | 0.30 | |
| Axial Load Factors : Y1 | 2.00 | |
| Axial Load Factors : Y0 | 1.10 | |
| Da(Min.) | 43 mm | |
| Db(Max.) | 27 mm | |
| Da(Max.) | 43.5 mm | |
| Db(Min.) | 47 mm | |
| Sa(Min.) | 3 mm | |
| Sb(Min.) | 4 mm | |
| Ra(Max.) | 1.5 mm | |
| Rb(Max.) | 1.5 mm | |
| Mass(Refer.) | 0.244 kg |